Traction-belt.



c. L'TOLLES, TRACTION BELT.

APPLICATION FILED MAY 14. Hill.

B SHEETS-SHEET 1.

MIT/VEJJEJ C. L. TOLLES.

TRACTION BELT.

APPLICATION FILED MAY14, 1912.

Patented M1213, 1915.

, l BEETS-Sm VI 25 teas To all whom ttmaig concern I .Be it knownthat. ll, CnAnLns LlToLLns,

oflEau Claire, Eau Claire county, Wisconsurface over which the engine may be moving.

A further object is to provide a traction belt which will not easily clog and obstruct the efidciency and pulling power of the engine. 1,

My invention consists generally in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.

' In the accompanying drawings forming part of the-specification, Figure l is a side elevation of a tractionbelt embodying my invention, Fig. 2 is a detail view of a portion of the belt, Fig. 3 is a sectional view on the line w-.-m of Fig. 2, Fig. 4 is a detail plan' view illustrating the manner of constructing one of the anti-friction rollers with which the lower run of the belt contacts.

.ln' the drawing, 2 and 3 represent sprocket wheels journaled in boxes 4 and 5 in the frame 6, which in turn has a drive i 1 shaft 7. on which said. frame and the sprocket wheels are adapted to oscillate and allow the 'belt to conform to'the inequalities of the ground over'which the machine'is-mo'ving. For; clearness-of illustration T have omitted the driving connections between the sprocket wheels and the drive shaft, and for the further reason that m invention relates particularly to the traction belt. The boxes tare plate 8 and an outer plate 9, rigidly'securedto the inner plate by suitable mear a, sucker;

bolts 10. Slots or recesses 11 are provided in the inner plate to receive the teeth of thesprocket wheels 2 and 3. These inner and specification of Letters tatent. hpplicatlonflled May it, iota. semi No. eeaaet.

= as: r... reaths, or nan it i :1..tIlTI01lT-BJELT.

Patented te, it.

outer plates constitute a link of the sprocket belt and each outer plate has a ar eb 12 formed thereon projecting outwardly; tit

" right angles substantially to thih plane of the plates and terminating in adoe 13 which lies in a plane parallel substantially with the plane of the plates 821ml 9 and is preferably provided on its under. surface with a; spur or tooth 14:. Each end of the shoe is preferably provided with a beveled surface 15. These plates and the ;.-web and shoe thereon are preferably made of manganese steel on account of its strength and durability under the rough and hard usageto which a tractlon belt on a logging engine would naturally be subjected. The webs are hf.

sufiicient length to raise the-plates '8 and 9 -a considerable distance above the shoes, so

that in traveling over rough ground or snow and ice the links of the belt will be raised clear of any ordinary obstruction.

Any suitable means may be employed for securing the links of'the belt together, but I prefer to provide cables-.16, preferably of wire, fitting within tortuous ,passages or grooves 17 formed in the opposing faces of the plates 8 and 9 and securely gripped by means of the bolts 10. The irregular or torv tuous passages or gijooves allow the clampthe belt, Fig. 5- is adetail sectional view of ing of the links more securely on the cables Between the lower run of the traction belt and the 'frameflti I prefer to provide antifriction'bearings consisting of a series of rolls 18 loosely'morunted on studs 19 between rings 20 and adapted to bear on the upper surface of the plates 8 and on the under surfaceof channel bars 21. secured to flanges 22 at the lower edge of the frame 6,

as shown in Fi-g. 3. Bolts 23 pass lengthwis'ethrough the studs and are provided with disks 24 between which and the ends of the studs cables 25 .are securely gripped 1n grooves 26 formed in said disks and studs. Hoops-27 form continuations of the bars 21 andare curved upwardly and inwardly and I fsecuredto the upper-portion of the frame 6 on opposite sides of the bearing 7. These hoops form bearings for the anti-frict on.

rolls 18 when they -pass out of engagement "withg-thefl links of the traction belt. I prefer a lso to provide adjustin screws 27 by meansof w ichthehoops. 2 can be moved back andforth to obtain the desired te signon the anti-friction belt encircling 't em.

Suitable guide plates 28 are preferably provided on the upper portion of these hoops to hold the belts in place thereon, and similar guide plates 28 are mounted on the lower portion of the frame and prevent outward or lateral movement of the lower run of the anti-friction belts. Inner guide plates 29 are also mounted on the frame and aid in holding the anti-friction belts in their proper position with respect to said frame.

In operation, the shoes 13 will rest upon the surface over which the machine is moving, raising the iinks and the cables connecting them asuflicient distance to clear ordiand described may be modified and still be within the s ep -of my invention.

1 claim as"inyffinvention: 1. A traction belt composed of links, each comprising an inner and outer flattened :plate, and a continuous flexible means passing between said plates and connecting adjacent links, the outer plates of said links having traction shoes formed thereon, and

means securing the plates of each link to gether and to said flexible means.

2. A' traction belt composed of links, each having a transverse ,web extending outwardly at right angles substantially to the plane of the link and terminating in an elon ated shoe which lies in. a plane parallel, substantially, with the plane of the link and provided with a tooth or spur on its outer face, and flexible means passing through said links and connecting adjacent links.

3. A traction belt comprising links having centrally arranged sockets therein adapt ed to receive the teeth of a sprocket wheel, the outer faces of said links having traction surfaces and an endlessflexible means included between the inner and outer faces of said links-and secured thereto upon each side of said sprocket wheel teeth sockets. l

4. -A traction belt composed of links, each comprising inner and outer plates having longitudinal grooves therein, cables fittin within said grooves and connecting sai links with one another, means for drawing said plates together to clamp them on said cables, and traction shoes carried by said links. v

5. A traction belt comprising links, each composed of inner and outer plates, said outer plates having webs formed thereon and traction shoes at the outer portions of said webs, said plates having grooves formed in their opposing faces, cables fitting within said grooves, bolts passing through said thereon.

plates and clamping them onsaid. eables,

said plates having slots or recesses to receive the teeth of a sprocket wheel.

6. In a traction machine, the combination, with a frame, and driven s rocket wheels, of a traction belt and a bet having antifriction rollers interposed between said frame and said traction belt, said anti-friction rollerbelt comprising studs, rollers mounted thereon, cables provided at the ends of said studs, disks engaging said cables, and means for clamping said cables, studs, and disks together.

7. A traction belt comprising links,-each consisting of an inner and an outer member, the outer member having a traction surface, flexible means passing between the members of each link and having tortuous bearing surfaces in their opposing faces, thereby increasing the area of the frictional surfaces between said members and said flexible means, means securing said members together, said flexible means forming a connection between adjacent links.

8. A traction belt comprising links composed of inner and outer plates, parallel cables interposed between the plates of said links and secured thereto and forming an endless flexible means connecting said links with one another, said outer plates having a traction means thereon.

9. A traction belt comprising a series of Links, each composed of an inner and outer member having opposing faces, flexible means extending between said opposing faces, and means securing the plates together and to said flexible means, said outer members having transverse webs formed thereon and traction shoes carried by said webs and transversely thereof, said members having holes or openings therein adapted to receive the teeth of a sprocket wheel.

10. A traction belt comprising a series of links, each composed of an inner and outer plate having central openings therein to receive the teeth of a sprocket wheel, flexible means passing between the opposing faces of said plates on both sides of" the openings therein, bolts passing through said plates upon both sides of said flexible means andsaid' openings and clamping said flexible means securely between said plates, said flexible means connecting adjacent links and said outer plates havlng traction shoes 1 11. A traction belt comprising a series of links, eachcomposed of inner and outer members having openings in'their middle portions to receive the teeth of a sprocket wheel, said outer members having com aratively narrow transversewebs formed t I ereon and projecting outwardly therefrom, and traction shoes carried by said webs and extending transversely thereof, flexible means passing. between said members upon each nianeae wide of the openings therein and connecting clamped between said track and wearing shoes.

13. A traction belt comprising a traction sections series of a track formed on said sections, wearing shoes secured thereto, and a flexible strip clamped between said track and shoes, said traction sections having artioulated attachment with each other.

H. A traction belt comprising a series of links, each composed of an inner and an outer plate having central openings therein to receive the teeth of a vsprocket wheel, flexible means passing between the opposing faces of said plates on, both sides of the openings therein, belts passing through said.

plates upon both sides of said flexible means and said openings and clamping said flexible means securely between said plates, said and means ad acent 1 s hand this 7th til flexible means connecting adjacent links and said outer plates having traction means thereon.

15. Al traction belt composed of links, each having; a transverse web extending outwardly at right angles substantially to the plane of the link and terminating inan elongated shoe which lies in a plane parallel, substantially, with the plane of the link, ivotally connecting the ends of 16. A traction belt composed of links, each having a transverse web extending outwardly at right angles substantially to the plane of the llllk and terminating in an elongated shoe which lies in a plane parallel, substantially, with the plane of the link and provided witha tooth or spur on its outer face, and means pivotally connecting the ends of each link to the contiguous ends of adjacent links. I

llnwitness whereof, l have hereunto set day or h/lay, 1912. it t LES L. TOLJDES.

Witnessesz= a 1B. 0.. Bw, l. B. Romano. 

